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《Chinese Journal of Clinical Pharmacy》 2002-03
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Pharmacokinetics of rats after administrating harmine hydrochloride by injection of vein and intragastric administration

Wang Changhong, Sun Dianjia, Gao Weiwei (Department of Pharmaceutical, Pharmacy SchooL of Xinjiang Medical University, Urumuqi 830054, China)  
AIM: To study the pharmacokinetics and bioavailability of harmine hydrochloride capsule in rats. METHODS:An 8 h blood collection was done by carotid artery cannulation after rat administrating harmine hydrochloride at a dose of 10 mg·kg -1 by injection of vein and at a dose of 40 mg·kg -1 by intragastric administration, respectively. The plasma concentrations of harmine hydrochloride were measured by reversed phase high performance liquid chromatography (RP-HPLC). RESULTS: Plasma peak level reached at about 0.23 h with an average value of 2.958 μg·mL -1 after intragastrical administration. Average elimination half-life was 5.33 h. Bioavailability of harmine hydrochloride capsule was 19.65%. CONCLUSION: Harmine hydrochloride is absorbed rapidly by rats but with a lower bioavailability.
【CateGory Index】: R965
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